Strongly disagree. To me, a few of the Peterson ones have an aftertaste. It’s not as pronounced. Some more subtle than others, but it lingers on the back of your palate. I’m often considered a supertaster, so I have no idea how this will translate to your experience. Shenandoah and Allegheny are probably the only two Peterson pawpaws that I can eat more than one of in a single sitting.
Try a Wilson’s pawpaw. It’s an old named cultivar. KSU’s Dr. Kirk Pomper once joked that after you try Wilsons, “you may wish for death.”
I should also point out that phenolic wild taste is different from a pawpaw which may have a “strong” flavor. You can have one without the other.
I posted about my experience first time tasting a lot of pawpaws last year.